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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2010 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
* Authors:
* Kristian Høgsberg
* Damien Lespiau <damien.lespiau@intel.com>
*/
#include "clutter-keysyms.h"
#include "clutter-xkb-utils.h"
/*
* _clutter_event_new_from_evdev: Create a new Clutter ClutterKeyEvent
* @device: a ClutterInputDevice
* @stage: the stage the event should be delivered to
* @xkb: XKB rules to translate the event
* @_time: timestamp of the event
* @key: a key code coming from a Linux input device
* @state: TRUE if a press event, FALSE if a release event
* @modifer_state: in/out
*
* Translate @key to a #ClutterKeyEvent using rules from xbbcommon.
*
* Return value: the new #ClutterEvent
*/
ClutterEvent *
_clutter_key_event_new_from_evdev (ClutterInputDevice *device,
ClutterStage *stage,
struct xkb_state *xkb_state,
uint32_t _time,
xkb_keycode_t key,
uint32_t state)
{
ClutterEvent *event;
xkb_keysym_t sym;
const xkb_keysym_t *syms;
char buffer[8];
int n;
if (state)
event = clutter_event_new (CLUTTER_KEY_PRESS);
else
event = clutter_event_new (CLUTTER_KEY_RELEASE);
/* We use a fixed offset of 8 because evdev starts KEY_* numbering from
* 0, whereas X11's minimum keycode, for really stupid reasons, is 8.
* So the evdev XKB rules are based on the keycodes all being shifted
* upwards by 8. */
key += 8;
n = xkb_key_get_syms (xkb_state, key, &syms);
if (n == 1)
sym = syms[0];
else
sym = XKB_KEY_NoSymbol;
event->key.device = device;
event->key.stage = stage;
event->key.time = _time;
event->key.modifier_state =
xkb_state_serialize_mods (xkb_state, XKB_STATE_EFFECTIVE);
event->key.hardware_keycode = key;
event->key.keyval = sym;
n = xkb_keysym_to_utf8 (sym, buffer, sizeof (buffer));
if (n == 0)
{
/* not printable */
event->key.unicode_value = (gunichar) '\0';
}
else
{
event->key.unicode_value = g_utf8_get_char_validated (buffer, n);
if (event->key.unicode_value == -1 || event->key.unicode_value == -2)
event->key.unicode_value = (gunichar) '\0';
}
return event;
}
/*
* _clutter_xkb_state_new:
*
* Create a new xkbcommon keymap and state object.
*
* FIXME: We need a way to override the layout here, a fixed or runtime
* detected layout is provided by the backend calling _clutter_xkb_state_new();
*/
struct xkb_state *
_clutter_xkb_state_new (const gchar *model,
const gchar *layout,
const gchar *variant,
const gchar *options)
{
struct xkb_context *ctx;
struct xkb_keymap *keymap;
struct xkb_state *state;
struct xkb_rule_names names;
ctx = xkb_context_new(0);
if (!ctx)
return NULL;
names.rules = "evdev";
if (model)
names.model = model;
else
names.model = "pc105";
names.layout = layout;
names.variant = variant;
names.options = options;
keymap = xkb_map_new_from_names(ctx, &names, 0);
xkb_context_unref(ctx);
if (!keymap)
return NULL;
state = xkb_state_new(keymap);
xkb_map_unref(keymap);
return state;
}
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